Automatic oil pump with sight feed



March 20, 1928.

- J. J. LANGMACK AUTOMATIC OIL PUMP WITH SIGHT FEED Original Fi led Sent. 2

//7|/e/1Z0r, JOHN J lA/VGMA CK,

Atto g1.

March 20, 1928.

J. J. LANGMACK AUTOMATIC OIL PUMP WITH SIGHT FEED F79. X //l Original Filed Sept. 24, 1925 2 Sheets-Sheet llllll 'MIJJWl/AW 7 ln ven tor, -./0H/V J. LANG/max,

Patented Mar. 20, 1928.

JOHN J. LANGMAGK, OF PORTLAND, OREGON.

AUTOMATIC OIL PUMP WITH SIGHT FEED.

Application filed. September 24, 1925, Serial No. 58,413. Renewed August 19, 1927.

My invention relates to sight feed oil pumps of the character shown and described in my Letters Patent No. 1,349,617, 1ssued June 15, 1920, and has among its principal 5 objects to provide a construction in which the discharge is through the bottom of the box or casing, and in which there are new and improved regulating and controlling features, and other refinements and improvements which make for greater efficiency and certainty in operation.

In order to explain my invention, I have shown the same on the accompanying two sheets of drawings, which I will now describe.

Figure I is a top plan view with cover re moved and other parts shown in section;

Figure II is a vertical sectional view taken on line II-II of Fig. I;

Figure III is a cross sectional view taken on line III-III of Fig. I;

Figures IV and V areenlarged face and edge views of a spring spider for feed adjustment;

Figures VI and VII are similar views of a lock ring for the same;

Figure VIII is a front view of crank disk;

Figure IX is detail of crank shaft;

' Figure X is detail of ratchet wheel there- 30 for; I

Figure XI is detail of eccentric cam for said shaft;

Figure XII is a longitudinal sectional View of a double check valve,

Figure XIII is an end view of the same; and

Figure XIV is a vertical sectional view through the lower end of a suction leg.

Referring now in detail to the drawings, 1, designates a box or case having the floor flanges, 2, 2, for securing it upon a suitable support, and provided in the upper edges of the opposite end walls and the opposite side walls with hearing openings, as, 3, 3, and 4, 4, forming saddles for the members, 5, 5, and 6, 6, in the end walls and the mem bers 7 and 8, in the side walls, which members are again referred to.

The members 5, 5, are alike and each con stitutes a pump and check valve, having a cylinder, 5, formed therein, a cylindrical chamber, 5", connected with the cylinder by a passageway, 5, and being closed at its outer end by means of a screw plug, 5 A cylindrical valve body, 9, fits in said cylindrical chamber 5*, with two valve seats 10, 10, therein, with spring held valves, 11, 11, inserted through the top of the member 5, as clearly indicated in Fig. II. Said valve body, 9, has a passageway therethrough from the passageway, 5, to the outlet pipe, 12, extended down through the bottom of the box 1, as at 13, where it is provided with a nut, 14, to hold it in place. Said pipe, 12, is placed inside a pipe or sleeve, 15, screwed into the bottom of the box, as shown.

The members, 5, 5, are formed as parts of vertical members, 16, 16, Fig. III, each provided with a drip port, as 17, leading down into the cylinder 5,as indicated by the sectional part in Fig. III. Said vertical members, 16, 16, are each provided with longitudinally extending passageway, as 18, communicating at their upper ends with a spout, 19, and at their lower ends, with a chamber, 20, in which is a ball valve, 21, normally held by means of a spring, 22, and screw plug, 23, as seen in Fig. XIV. In the lower end of each of said members, 16, is formed a cylinder, as 24, the outlet to which is controlled by said ball valve, 21. Inlet to said cylinder is through the lower end of the member 16, which is provided with an open screw plug, 25, with ball valve therein, as 26, said screw plug having a screen, 27, in its bottom, as indicated. Thus the lubricant in the box or case, 1, is drawn through said screen plug 25, into the cylinder, 24, and is forced out through the passage 18 and the spout 19, in a manner again herein referred to. From the spout the oil or lubricant drops into the member '16, and its passageway, 17, and runs down into the cylinder, 5", from which it is forced out through the passage 5, through the cylindrical valve member 9, and to the feed pipe, 12, extending out through the bottom of the box or case.

I will now describe the mechanism for op erating the pistons in said cylinders, 5 and 24, and referring particularly to Figs. I and II.

The bearing members 7 and 8, in the opposite side walls of the box 1, carry a shaft 28, octagon for a part of its length, as at 28, Fig. IX. On said shaft are mounted two eccentric cam discs, as 29, 29, with spacing sleeves, 30, 31, and 32. Each of said eccentric earns, 29, operates a yoke, as 33, having connected to one side thereof, a piston, as

3 1, which operates in the cylinder, 5 in the memberf), before referred to. The other; side of each. yoke, 33,, is connected with. a regulating screw, 35, having its outer endhexagonal in form and telescoping intoan. adjustment nut, 35 through the member 6.

The members, 16, 16, have.the webportions, as 16, and each has an extension arm,

16 on the outer end of. which pivoted a rocker arm, 36, the lower end of whlch is connected by means of a slotted head, 37,-v

with a piston, 38, which works. in cylinder 24, before referred to. the. upper end of the rocker arm, 36, in'each case, is. connected; bymeansof a slotted. screw head, 39, w th said adjustment screw 35, whereby said parts. can be adjusted for regulation. of the. pump. ing. action. of the pistons 34s and 88. A spring spider,- 1O,;is placed on the inner end of;- the adjustment nut .359, with a spring ring, 41, around the inner end of said adjustment nut; 35, for-hold ng saidi'adpistment nut; in; itsdifi'erent adjustment positions 'llhesprillg; spider bears against the membe-r 6,, as clearly shown. and. thus yield.

inglyrhjolds .theadjust-ment nut, which, when turned,fturns the. adjustment screw. 35, to move the screwhead, .39, on thescrew.

. Mounted; on saidishaft 28, within the box 1, is,anoperatingratchet wheel, 12, operated by twopawls, 43, and 414-, pivotally. connected with a yokememben o, on-the hub portion 46,0f wheel,47 ,on the: outer. end of. said shaft- 28, as clearly seen inFig. 1. A folding- Crank-A8, is pivotally. connected: on the outer-1 face. of said wheel, -t7:, andzis adapted to. fold into closed position, as. l11CliC21t8Cl!lIl solid lines,or to,. open out. for. hand operation, asindicated inlightbroken lines; A spring, 19,- holds it ineither'. position} of adjustment, as WillabQ clear fron'1.the. showing thereof; Depending from the. lower, Slde;,0f

V saidwheel 4:7, isan operating rod, 50, which is detachably screwedintothe rim. of: said wheel, as indicated, with its lower. endzextended down to. Jae-connected, asby means .of a'member,;51;, to operating rod, 52, which can be. connected with any moving part of the machineryto. be lubricated. Thus. the os: cillatingof SZtlCltI'QCl 50, through the wheel 7,operates;the ratchet wheel 12, on the octagonal; shaft; 283, and throughv said. shaft operates the two eccentric'cam disks, 29, 29, andthroughtheyokes, 33,33, and the r con. nections, operate thepistons'i l and 38, for

drawing in the lubricant from the box, 1, in?

' to cylinders, 24, 24, and forcing it through passageways, 18,18, infthe vertical members 16, 16,1thespouts, 19,19, and to thecylinders .5, 5 fr om whichit is forced throug'lrthe valve 1nembers;.9,19,and to the: outlet, or feed pipes, 12, 12, through the bottom ofthe. box 1', asbefore described, Glass cups,,5;3, 58, areplaced around'the spouts,.19 19., and a glass. cover, 54, is secured tot-he removable cover, 55, of the box or case 1. A hinged closuremember, 56, coversa screened openinginto the topof. said cover 55, as indicated in Fig. II, for supplying lubricant to said Figs. XII and X'III' are enlarged views ofthe construction of the double check valve member, through which the lubricant is forced,- with the removablecylindrical valve body, 9, and the spring held valves, 11, this being similar to that shown connection with the member 5', in Fig. 11, and issimilar to that shown in my formerpatent. referred to and. is. not. claimed 111iCODIIOCf-lOllJYLtll tllls2 application.

One of the important featuresv of: the.pres.-.

ent invention is. the provision. of. the sleeve orpipe 15, connected through the. bottoinof.

the box or case. 1, and. through which. the" I dischargev pipe leads,

cant therefrom, which. in itself is. of: very great. importance, for. when it is. necessaryto.

drain the lubricant from the reservoirrand;

make disconnections. it takes, se-verali-hours and requires arshutting; down of the engine but. with. my construction. a. pumping; unit can be taken: out to be cleaned or. repaired; without removing thebox or reservoin-from This. enables. me to remove the pumping mechanlsm. from. the. box or reservoir. Without draining the-lubrithe engine, and said: pumping. units. can be removed: Without; any mechanicalv operations whatever, for it'willbe clear fromithe con; struction shown and described thatithe entire pumpingmechanism can hebodilyslifted from the box or case. after.- removing the cover 55 I do ,notjlimit the invention.to.-.the.-

made for illustrative purposes, exceptas I maybe limited I claims.

I claim:

' 1. Ina deviceof: the characterrreferredio, a box, a pumping-.inechanism thereiniinc-ludT ing a cylindenand: piston andiineans pi'oviding a. passageway through which lubricant from said box is pumped, saidzpassa geway including aspoutandfa gap..ac-ross which said 1 lubricant. drops from... said f spout,

a. sleevelsecured in therbottomofs saidibox and extending upwardly above. thelubricant level, and: a feed: pipel: extending through saidzslceve and; through. the bottom ofzsaidby the hereto appended spout through which sleeve, whereby said pumping mechanism can be lifted bodily from said box without disconnecting said box.

3. In a sight feed pumping mechanism, a box, a sleeve set in the bottom thereof and extending above the level of lubricant placed therein, a pumping mechanism set into said box and adapted to pump lubricant from said box, a discharge pipe extended through said sleeve and connected with said pumping mechanism, said pumping mechanism including a gap across which said lubricant is pumped before reaching said discharge pipe, a transparent covering for said gap, where by the lubricant can be seen as it passes across said gap, and means whereby said pumping mechanism can be lifted bodily from said box without disconnecting the same or removing the lubricant therefrom.

4. In a device of the character referred to, a box having lubricant therein, a sleeve set in the bottom of said box and extending up into said box, a pumping mechanism therein, a said lubricant is pumped, a second pumping mechanism to which said lubricant is fed by a drop from said spout, a transparent cover around said gap, whereby said. lubricant is visible as it drops from said spout, and a discharge pipe through said sleeve and the bottom of said box through which said second pumping mechanism forces said lubricant for feedin to place of use.

5. An automatic oil pump with sight feed, including in combination, a box, a sleeve set in the bottom thereof and extending up into said box, a pumping mechanism removably set into said box and detachably connected with the sides thereof, said pumping mechanism including a discharge spout in the upper part of said box and a discharge pipe extending through said sleeve and adapted to receive lubricant from said spout, and a transparent cover around said spout to make visible the lubricant discharged therefrom.

6. A sight feed oil pump including in combination a container for oil, a sleeve set in the bottom of said container and extending upwardly above the oil level and providing an outlet through the bottom of said container, a pumping mechanism removably set in said container and having a discharge pipe extended through said sleeve, and means providing a sight feed of oil from the pumping mechanism to said sleeve.

Signed at Portland, Multnoi'nah County, Oregon, this 14th day of September, 1925.

JOHN J. LANGMACK. 

